/*
 * Copyright (c) 2014. Real Time Genomics Limited.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.rtg.reader;

import java.util.Arrays;

/**
 * Applies a succession of delegate trimmers.
 */
public final class MultiReadTrimmer implements ReadTrimmer {

  private final ReadTrimmer[] mTrimmers;

  /**
   * Construct a read trimmer
   * @param trimmers the delegate trimmers to iterate through
   */
  public MultiReadTrimmer(ReadTrimmer... trimmers) {
    mTrimmers = trimmers;
  }

  @Override
  public String toString() {
    return "Multi(trimmers=" + Arrays.toString(mTrimmers) + ")";
  }

  @Override
  public int trimRead(byte[] read, byte[] qualities, int length) {
    int pos = length;
    for (ReadTrimmer t : mTrimmers) {
      pos = t.trimRead(read, qualities, pos);
    }
    return pos;
  }

}
